1/* BZ 11041 */
2#include <getopt.h>
3#include <unistd.h>
4#include <stdio.h>
5#include <stdlib.h>
6
7static const struct option opts[] =
8 {
9 { "a1", no_argument, NULL, 'a' },
10 { "a2", no_argument, NULL, 'a' },
11 { NULL, 0, NULL, 0 }
12 };
13
14static int
15one_test (const char *fmt, int argc, char *argv[], int n, int expected[n])
16{
17 optind = 1;
18
19 int res = 0;
20 for (int i = 0; i < n; ++i)
21 {
22 rewind (stderr);
23 if (ftruncate (fd: fileno (stderr), length: 0) != 0)
24 {
25 puts (s: "cannot truncate file");
26 return 1;
27 }
28
29 int c = getopt_long (argc: argc, argv: argv, shortopts: fmt, longopts: opts, NULL);
30 if (c != expected[i])
31 {
32 printf (format: "format '%s' test %d failed: expected '%c', got '%c'\n",
33 fmt, i, expected[i], c);
34 res = 1;
35 }
36 if (ftell (stderr) != 0)
37 {
38 printf (format: "format '%s' test %d failed: printed to stderr\n",
39 fmt, i);
40 res = 1;
41 }
42 }
43
44 return res;
45}
46
47
48static int
49do_test (void)
50{
51 char fname[] = "/tmp/bug-getopt5.XXXXXX";
52 int fd = mkstemp (template: fname);
53 if (fd == -1)
54 {
55 printf (format: "mkstemp failed: %m\n");
56 return 1;
57 }
58 close (fd: fd);
59
60 if (freopen (filename: fname, modes: "w+", stderr) == NULL)
61 {
62 puts (s: "cannot redirect stderr");
63 return 1;
64 }
65
66 remove (fname);
67
68 int ret = one_test (fmt: ":W;", argc: 2,
69 argv: (char *[2]) { (char *) "bug-getopt5", (char *) "--a" },
70 n: 1, expected: (int [1]) { 'a' });
71
72 ret |= one_test (fmt: ":W;", argc: 3,
73 argv: (char *[3]) { (char *) "bug-getopt5", (char *) "-W",
74 (char *) "a" },
75 n: 1, expected: (int [1]) { 'a' });
76
77 if (ret == 0)
78 puts (s: "all OK");
79
80 return ret;
81}
82
83#define TEST_FUNCTION do_test ()
84#include "../test-skeleton.c"
85

source code of glibc/posix/bug-getopt5.c